CN217684957U - Full-downdip step-free eccentric cyclone separator - Google Patents
Full-downdip step-free eccentric cyclone separator Download PDFInfo
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- CN217684957U CN217684957U CN202221207785.6U CN202221207785U CN217684957U CN 217684957 U CN217684957 U CN 217684957U CN 202221207785 U CN202221207785 U CN 202221207785U CN 217684957 U CN217684957 U CN 217684957U
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Abstract
A full-downdip step-free eccentric cyclone separator relates to the technical field of cyclone separators. The utility model discloses a there is the step in the import flue upper portion of solving current cyclone and separator barrel junction, its separation efficiency is lower, and separator export flying dust escape volume is big, can cause flying dust carbon content height, the big aggravation afterbody of flying dust volume to receive hot side wearing and tearing, NO x And the emission is high, and the like. The utility model discloses an entry flue, a central section of thick bamboo, entry furnace, barrel and upper portion furnace, the central line of a central section of thick bamboo and the central line eccentric settings of barrel, entry furnace's exhaust end department is equipped withThe water-cooled wall is characterized in that the upper end face of the flue and the lower end face of the flue are both arranged in a mode that the air inlet end inclines downwards towards the air outlet end, the inner side walls of the upper end face of the flue and the lower end face of the flue are both in a linear plane structure, the barrel is cylindrical, the rear side wall of the flue is tangent to the barrel, and the front side wall of the flue is arranged in a mode that the air inlet end inclines backwards towards the air outlet end. The utility model is used for circulating fluidized bed boiler.
Description
Technical Field
The utility model relates to a cyclone technical field, concretely relates to full no step eccentric cyclone that has a down dip.
Background
The cyclone separator is a common gas-solid separation device and is widely applied to the fields of circulating fluidized bed boilers, waste heat boilers, dust removers and the like. For a circulating fluidized bed boiler, a cyclone separator is an essential important structure, and the separation efficiency of the cyclone separator has great influence on the performance of the boiler; in some dust removal industries, cyclone separators are used for pre-dust removal.
The circulating fluidized bed boiler is an energy-saving low-emission clean coal-burning technology, and its technological process is characterized by that the interior of furnace cavity contains lots of circulating materials, the flue gas formed in the course of fuel combustion can be used for carrying the materials to upper portion of furnace cavity, and tangentially feeding them into cyclone separator of furnace cavity outlet, the material can be separated from flue gas by means of centrifugal action, and the material can be fed back into the furnace cavity from inner wall of separator cylinder body, so that the multiple circulating combustion of unburnt particles in the material can be implemented, and the flue gas can be discharged by means of central cylinder of the separator.
The inlet flue of the cyclone separator in the conventional technology adopts a full horizontal structure, a partial downdip horizontal structure and the like, and the connecting part of the upper part of some inlet flues and the cylinder body of the separator is provided with steps, so that the separation efficiency is lower, the flying ash escape quantity at the outlet of the separator is large, the flying ash carbon content is high, the flying ash quantity is large, the tail heating surface abrasion and NO are aggravated, and the like x High emissions, etc.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve current whirlwind branchThe connection part of the upper part of the inlet flue of the separator and the cylinder body of the separator is provided with steps, the separation efficiency is lower, the flying ash escape quantity at the outlet of the separator is large, the carbon content of the flying ash is high, the flying ash quantity is large, the abrasion of the heating surface at the tail part and NO are aggravated x The problem of high adverse effect such as emission, and the like, and further provides a full-declination step-free eccentric cyclone separator.
The utility model discloses a solve the technical scheme that above-mentioned technical problem took and be:
the fully-declined step-free eccentric cyclone separator comprises an inlet flue, a central cylinder, an inlet hearth, a cylinder body and an upper hearth, wherein the inlet hearth is connected with the air inlet end of the inlet flue, the air outlet end of the inlet flue is connected with the air inlet end of the upper part of the cylinder body, the air inlet end of the central cylinder is connected with the air outlet end of the top of the cylinder body, the air outlet end of the central cylinder is connected with the air inlet end of the upper hearth, the central line of the central cylinder and the central line of the cylinder body are eccentrically arranged, a water-cooled wall is arranged at the air outlet end of the inlet hearth, the inlet flue comprises a flue upper end surface, a flue lower end surface, a flue rear side wall and a flue front side wall, the flue upper end surface and the flue lower end surface are both obliquely downwards arranged from the air inlet end to the air outlet end, the inner side walls of the flue upper end surface and the flue lower end surface are both in a linear plane structure, the cylinder body is cylindrical, the flue rear side wall is tangent to the cylinder body, and the front side wall is obliquely backwards arranged from the air inlet end to the air outlet end.
Furthermore, the distance between the flue front side wall and the flue rear side wall is gradually reduced from the air inlet end to the air outlet end.
Furthermore, an included angle between the rear side wall of the flue and the horizontal tangent plane of the cylinder is beta, and the beta is 16 degrees.
Furthermore, the included angle between the upper end surface of the flue and the horizontal plane as well as the lower end surface of the flue is alpha, and alpha is 9.5 degrees.
Furthermore, the distance between the central line of the central cylinder and the central line of the cylinder body is D, and D is 150-400 mm.
Furthermore, the lower end air inlet end of the central cylinder is inserted into the top exhaust end of the cylinder body, and a reinforcing mechanism is arranged between the central cylinder and the cylinder body.
Furthermore, the reinforcing device comprises a cylinder, a ring and a plurality of steel plates, the cylinder is coaxially sleeved on the outer side of the central cylinder, the ring is arranged between the central cylinder and the cylinder, the inner side edge of the ring is fixedly connected with the central cylinder, the outer side edge of the ring is fixedly connected with the upper end of the cylinder, the plurality of steel plates are uniformly distributed and fixedly connected between the central cylinder and the cylinder along the circumferential direction, each steel plate is respectively arranged along the radial direction, and the steel plates are respectively fixedly connected with the outer side wall of the central cylinder, the lower end face of the ring and the inner side wall of the cylinder.
Furthermore, a compressed air sleeve is downwards inserted on the side wall of the lower conical section of the cylinder body.
Further, the shape of the upper hearth is square.
Furthermore, the inner side wall of the upper end surface of the flue is in transition connection with the inner side wall of the upper end of the air inlet end of the cylinder through a smooth curve transition section.
Compared with the prior art, the utility model the beneficial effect who contains is:
1. the utility model provides a full decline does not have step eccentric cyclone adopts the new construction form of full decline does not have the step, can make cyclone have higher separation efficiency, and the separator export is from flying dust volume few, reduces flying dust carbon content, reduces afterbody heating surface wearing and tearing, reduces NO x And discharged, thereby providing better performance to the circulating fluidized bed boiler, the dust remover, and the like.
2. The central line of the central cylinder is consistent with the central line of the smoke rotation, the central line of the central cylinder and the central line of the smoke rotation in the central cylinder are not the central line of the cylinder body and have certain deviation, and the central cylinder is offset, so that the separation efficiency of the separator can be improved.
3. The separator cylinder body adopts a cylindrical type, so that the design, the production and the processing are more convenient, the design and the production period are shortened, and the cost is saved.
4. The inlet flue of the separator adopts a water-cooled wall structure, and water circularly flows in the pipe, so that the temperature of steel plates forming the separator can be reduced, the conditions of deformation and welding line cracking of the separator are effectively relieved, and the safety of the separator is improved.
Drawings
FIG. 1 is a front view of the whole structure of the cyclone separator of the present invention when the upper part of the outlet window of the inlet hearth 2 is in a downward inclination form and the lower part is in a horizontal form;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is an enlarged view at I in FIG. 1;
FIG. 4 is an enlarged view at II in FIG. 1;
FIG. 5 is an enlarged view at III in FIG. 1;
FIG. 6 is a front view showing the overall structure of the cyclone separator of the present invention when the upper and lower portions of the outlet window of the inlet furnace 2 are horizontal;
FIG. 7 is an enlarged view at IV in FIG. 6;
fig. 8 is a top view of the stiffening mechanism of the present invention;
fig. 9 is an enlarged view at V in fig. 1.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 9, and the fully-declined step-free eccentric cyclone separator in the embodiment includes an inlet flue, a central cylinder 1, an inlet furnace 2, a cylinder 3 and an upper furnace 4, wherein the inlet furnace 2 is connected with an air inlet end of the inlet flue, an air outlet end of the inlet flue is connected with an upper air inlet end of the cylinder 3, an air inlet end of the central cylinder 1 is connected with an air outlet end of the top of the cylinder 3, an air outlet end of the central cylinder 1 is connected with an air inlet end of the upper furnace 4, a center line of the central cylinder 1 is eccentrically arranged with a center line of the cylinder 3, an air outlet end of the inlet furnace 2 is provided with a water-cooling wall 14, the inlet flue includes a flue upper end surface 5, a flue lower end surface 6, a flue rear side wall 7 and a flue front side wall 8, the flue upper end surface 5 and the flue lower end surface 6 are both arranged with the air inlet end inclined downwards to the air outlet end, inner side walls of the flue upper end surface 5 and the flue lower end surface 6 are both in a linear plane structure, the cylinder-shaped flue, the rear side wall 7 is tangent to the cylinder 3, and the front side wall 8 is arranged with the air inlet end inclined backwards from the air outlet end to the exhaust end.
The second embodiment is as follows: in the present embodiment, the distance between the flue front side wall 8 and the flue rear side wall 7 gradually decreases from the air inlet end to the air outlet end in the present embodiment, which is described with reference to fig. 1 to 9. Other components and connection modes are the same as those of the first embodiment.
The third concrete implementation mode: referring to fig. 1 to 9, the angle between the flue rear sidewall 7 and the horizontal section of the cylinder 3 is β, and β is 16 °. Other components and connection modes are the same as those of the second embodiment.
The inlet flue is designed to form 16-degree inclined contraction with the horizontal plane: the path of the flue gas in the separator is lengthened, the flue gas speed is improved, and the separation efficiency is further improved.
The fourth concrete implementation mode: the present embodiment is described with reference to fig. 1 to 9, and the included angle between the flue upper end surface 5 and the flue lower end surface 6 and the horizontal plane is α, and α is 9.5 °. Other components and connection modes are the same as those of the third embodiment.
The fifth concrete implementation mode: in the present embodiment, the distance between the center line of the center tube 1 and the center line of the tube body 3 is D, and D is 150mm to 400mm. Other components and connection modes are the same as those of the first embodiment, the second embodiment, the third embodiment or the fourth embodiment.
The optimal distance D between the central line of the central cylinder 1 and the central line of the cylinder 3 is 230mm.
The sixth specific implementation mode: the present embodiment will be described with reference to fig. 1 to 9, in which the lower end air inlet end of the central tube 1 is inserted into the top air outlet end of the cylinder 3, and a reinforcing mechanism is provided between the central tube 1 and the cylinder 3. Other components and connection modes are the same as those of the first embodiment.
So designed to ensure that the central cartridge 1 does not deform.
The seventh concrete implementation mode: the embodiment is described with reference to fig. 1 to 9, the reinforcing mechanism of the embodiment includes a cylinder 11, a ring 12 and a plurality of steel plates 13, the cylinder 11 is coaxially sleeved outside the central cylinder 1, the ring 12 is disposed between the central cylinder 1 and the cylinder 11, an inner side edge of the ring 12 is fixedly connected to the central cylinder 1, an outer side edge of the ring 12 is fixedly connected to an upper end of the cylinder 11, the plurality of steel plates 13 are uniformly distributed and fixedly connected between the central cylinder 1 and the cylinder 11 along a circumferential direction, each steel plate 13 is disposed along a radial direction, and the steel plates 13 are fixedly connected to an outer side wall of the central cylinder 1, a lower end surface of the ring 12 and an inner side wall of the cylinder 11. Other components and connection modes are the same as those of the sixth embodiment.
The specific implementation mode eight: referring to fig. 1 to 9, the present embodiment is described, and a compressed air sleeve 10 is inserted downward into a side wall of a lower conical section of the cylinder 3 according to the present embodiment. Other components and connection modes are the same as those of the first embodiment.
The design can blow compressed air when needed, and therefore the fly ash can be effectively prevented.
The specific implementation method nine: the present embodiment will be described with reference to fig. 1 to 9, and the upper furnace 4 of the present embodiment has a square shape. Other components and connection modes are the same as those of the first embodiment.
The furnace wall on the upper part of the separator is designed to be of a square structure, so that the design, production and construction are simple, the operation and maintenance are convenient, the cost is reduced, and the economy is improved.
The detailed implementation mode is ten: referring to fig. 1 to 9, the embodiment is described, in which the inner side wall of the upper end surface 5 of the flue and the inner side wall of the upper end of the air inlet end of the cylinder 3 are in transition connection through a smooth curve transition section. Other components and connection modes are the same as those of the first embodiment.
The inner side wall of the front side wall 8 of the flue is in transition connection with the inner side wall of the front end of the air inlet end of the barrel 3 through a smooth curve, and the arc radius of the curve is 80mm.
So design makes the flue gas circulation more smooth and easy from the resistance that furnace got into the separator of reduction flue gas, improves separator separation efficiency.
And the arc radius of a smooth curve transition section between the inner side wall of the upper end face 5 of the flue and the inner side wall of the upper end of the air inlet end of the barrel 3 is R, and R is 1000mm.
And a flat pouring layer 9 is arranged on the inner side wall of the air inlet end of the flue upper end surface 5 and/or the air inlet end of the flue lower end surface 6.
When the upper portion and/or the lower portion of the outlet window of the inlet hearth 2 are designed to be of a horizontal structure, the upper portion and/or the lower portion of the outlet window of the inlet hearth 2 can form a step with the air inlet end of the flue upper end face 5 and/or the flue lower end face 6, and at the moment, the inner side walls of the flue upper end face 5 and the flue lower end face 6 are of linear plane structures through the flat pouring layer 9 structure, so that a step-free structure is guaranteed between the whole inlet hearth 2, the inlet flue and the barrel 3.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (10)
1. The utility model provides a full decline does not have step eccentric cyclone which characterized in that: the novel energy-saving boiler comprises an inlet flue, a central cylinder (1), an inlet hearth (2), a cylinder body (3) and an upper hearth (4), wherein the inlet hearth (2) is connected with the air inlet end of the inlet flue, the air outlet end of the inlet flue is connected with the air inlet end of the upper part of the cylinder body (3), the air inlet end of the central cylinder (1) is connected with the air outlet end of the top of the cylinder body (3), the air outlet end of the central cylinder (1) is connected with the air inlet end of the upper hearth (4), the central line of the central cylinder (1) is eccentrically arranged with the central line of the cylinder body (3), a water-cooling wall (14) is arranged at the air outlet end of the inlet hearth (2), the inlet flue comprises a flue upper end surface (5), a flue lower end surface (6), a flue rear side wall (7) and a flue front side wall (8), the flue upper end surface (5) and the flue lower end surface (6) are both obliquely arranged from the air inlet end to the air outlet end, the inner side walls of the flue upper end (5) and the inner side walls of the lower end surface (6) are both of the straight-shaped plane structures, the cylinder body (3), the cylinder body is tangent with the rear side wall (7) and the straight flue side wall (8), and the front side wall is inclined backwards from the front end (8).
2. The fully declined stepless eccentric cyclone separator as claimed in claim 1, wherein: the distance between the front side wall (8) of the flue and the rear side wall (7) of the flue is gradually reduced from the air inlet end to the air outlet end.
3. The fully declined stepless eccentric cyclone separator as claimed in claim 2, wherein: the included angle between the rear side wall (7) of the flue and the horizontal tangent plane of the cylinder (3) is beta, and the beta is 16 degrees.
4. The fully declined stepless eccentric cyclone separator as claimed in claim 3, wherein: the included angle between the upper end surface (5) of the flue and the lower end surface (6) of the flue and the horizontal plane is alpha, and the alpha is 9.5 degrees.
5. The fully declined, stepless eccentric cyclone separator as recited in claims 1, 2, 3 or 4, wherein: the distance between the central line of the central cylinder (1) and the central line of the cylinder body (3) is D, and D is 150-400 mm.
6. The fully declined stepless eccentric cyclone separator as claimed in claim 1, wherein: the lower end air inlet end of the central cylinder (1) is inserted into the top exhaust end of the cylinder body (3), and a reinforcing mechanism is arranged between the central cylinder (1) and the cylinder body (3).
7. The fully declined stepless eccentric cyclone separator as claimed in claim 6, wherein: the reinforcing mechanism comprises a cylinder (11), a ring (12) and a plurality of steel plates (13), wherein the cylinder (11) is coaxially sleeved on the outer side of the central cylinder (1), the ring (12) is arranged between the central cylinder (1) and the cylinder (11), the inner side edge of the ring (12) is fixedly connected with the central cylinder (1), the outer side edge of the ring (12) is fixedly connected with the upper end of the cylinder (11), the steel plates (13) are uniformly distributed and fixedly connected between the central cylinder (1) and the cylinder (11) along the circumferential direction, each steel plate (13) is respectively arranged along the radial direction, and the steel plates (13) are respectively fixedly connected with the outer side wall of the central cylinder (1), the lower end face of the ring (12) and the inner side wall of the cylinder (11).
8. The fully declined stepless eccentric cyclone separator as claimed in claim 1, wherein: and a compressed air sleeve (10) is downwards inserted on the side wall of the lower conical section of the cylinder body (3).
9. The fully declined stepless eccentric cyclone separator as claimed in claim 1, wherein: the upper hearth (4) is square.
10. The fully declined stepless eccentric cyclone separator according to claim 1, is characterized in that: the inner side wall of the upper end surface (5) of the flue is in transition connection with the inner side wall of the upper end of the air inlet end of the cylinder (3) through a smooth curve transition section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221207785.6U CN217684957U (en) | 2022-05-18 | 2022-05-18 | Full-downdip step-free eccentric cyclone separator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221207785.6U CN217684957U (en) | 2022-05-18 | 2022-05-18 | Full-downdip step-free eccentric cyclone separator |
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| CN217684957U true CN217684957U (en) | 2022-10-28 |
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| CN202221207785.6U Active CN217684957U (en) | 2022-05-18 | 2022-05-18 | Full-downdip step-free eccentric cyclone separator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116146973A (en) * | 2022-12-27 | 2023-05-23 | 哈尔滨红光锅炉总厂有限责任公司 | Low-level arrangement high-efficiency boiler system with desulfurization and denitrification circulating fluidized bed in furnace |
| CN116182153A (en) * | 2022-12-29 | 2023-05-30 | 哈尔滨红光锅炉总厂有限责任公司 | Downward side cutting type hearth outlet smoke window structure of energy-saving circulating fluidized bed boiler |
-
2022
- 2022-05-18 CN CN202221207785.6U patent/CN217684957U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116146973A (en) * | 2022-12-27 | 2023-05-23 | 哈尔滨红光锅炉总厂有限责任公司 | Low-level arrangement high-efficiency boiler system with desulfurization and denitrification circulating fluidized bed in furnace |
| CN116182153A (en) * | 2022-12-29 | 2023-05-30 | 哈尔滨红光锅炉总厂有限责任公司 | Downward side cutting type hearth outlet smoke window structure of energy-saving circulating fluidized bed boiler |
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